Petroleum and Coal Products Manufacturing (NAICS 3241)

A Histometrics rollup primer for public-market and private investors. This page synthesizes our three child primers (32411 Petroleum Refineries; 32412 Asphalt Paving, Roofing and Saturated Materials; 32419 Other Petroleum and Coal Products) plus our ground-truth federal statistics for the industry group as a whole. Reported facts are cited; forward-looking statements are labeled as judgments.

1. Overview

NAICS 3241 is the industrial link between crude oil (and coal) and the finished carbon-based products a modern economy burns, drives on, and lives under. (NAICS is the North American Industry Classification System, the U.S. government's official industry taxonomy; the 4-digit "industry group" 3241 sits inside Sector 31–33, Manufacturing.) One raw-material family — the hydrocarbon barrel and its residues — is split into three very different businesses: refining crude into fuels, converting the leftover binder into roads and roofs, and blending or baking the odds and ends into lubricants, waxes, coke and carbon.

For an investor the level's defining feature is that it is not one industry but three, welded together by a shared feedstock and pulled apart by almost everything else — size, who works there, who owns it, and where it is headed. The single most important fact about NAICS 3241 is that one child (refining) is ~93% of the revenue but only ~7% of the plants, while the other two children are 93% of the plants and ~7% of the revenue [1]. Whatever you conclude about "the money" is really a conclusion about refining; whatever you conclude about "the workforce and the small business" is really about paving, roofing and lubricants. Holding both pictures at once is the whole job of this page.

Across all three, the common economics are the same: owners earn a spread (product value minus feedstock cost) times throughput, live or die on plant utilization, and take almost no volume growth — every child faces a flat-to-shrinking demand core. And across all three, direct ownership skews away from clean public pure-plays toward integrated majors, private conglomerates, and small local operators.

2. What's inside — the three child industries and how they differ

NAICS 3241 divides into three 5-digit industries, which in turn hold five 6-digit "national industries": refining is undivided (324110); paving-and-roofing splits into paving mix (324121) and shingles/coatings (324122); and the residual child splits into lubricants and grease (324191) and everything else — coke, carbon and wax (324199) [2][3][4]. Their contrast is the story of the level:

An acronym note used throughout: HHI (Herfindahl-Hirschman Index) is a concentration score — higher means fewer, bigger players, and antitrust regulators treat anything under 1,500 as "unconcentrated." CR4 / CR8 / CR20 are the combined revenue shares of the top 4, 8 and 20 firms.

The one-line takeaway. NAICS 3241 is a giant, concentrated, cash-generative refining industry with a large, fragmented paving-and-roofing trade and a specialist lubricants-and-carbon corner bolted onto the same barrel. The three barely share owners: the refiners (Marathon, Valero, Phillips 66) are not the paving majors (Vulcan, CRH) are not the shingle giants (GAF, Owens Corning) are not the coke house (SunCoke). The only genuine bridges are the diversified refiners — Phillips 66, HF Sinclair, Calumet — whose specialty arms straddle refining, lubricants, wax and needle coke [2][4].

Why the three diverge. They start from different points in the barrel. Refining is the whole barrel and captures its scale, its price volatility, and its capital intensity. Paving and roofing take the cheapest residue at the bottom (asphalt binder), so they are heavy, local, low-value-per-pound trades that can only travel a short haul from the plant — Vulcan reports hot-mix deliveries are generally confined to about 20–25 miles from the plant, which is why there are thousands of small plants and no national paving market [3]. The "other" child scoops up what is left (base oils for lubricants; coke and wax), a mix of a big fragmented consumer-facing lubricants business and a tiny, concentrated, capital-heavy carbon business.

3. How big it is (this level's rollup figures)

Our ground-truth federal statistics for NAICS 3241, and how cleanly the three children reconcile to them:

The reconciliation is a strong cross-check. Receipts, establishments, employment and payroll each sum to the level total exactly. The only gap is firm count — the children sum to 809 against 790 reported at the level — because a handful of companies (the bridge refiners, plus aggregates majors with both paving and other operations) are active in more than one child and are counted once at the rollup [1][2][4].

How to read these numbers.

• This is a small-headcount, enormous-revenue level. About 101,000 workers produced $883 billion of 2022 shipments — roughly $8.8 million of output per employee for the level as a whole, though that average hides a 13-to-1 spread between refining (~$15M/worker) and paving-and-roofing (~$1.1M/worker) [1][2][3].
• The level's revenue and margins are really refining's. Because one child is 93% of receipts, the level's $883B and its cyclicality are essentially refining's fingerprint. The clearest single illustration is Valero's refining operating income, which fell from $15.803 billion in 2022 to $3.971 billion in 2024 and $4.040 billion in 2025 — the same swing that moves the whole industry group's headline [2].
• But the level's concentration numbers are worse than useless — they understate every child. The level's CR4 of 49.5% is below refining's 52.2%, and its HHI of 764 is below refining's 853 [1][2]. That is not because the level is less concentrated; it is because pooling ~50 refining firms with 525 paving-and-roofing firms and 234 lubricants-and-carbon firms creates a "top four" drawn from companies that never compete with each other. Our 32419 primer documents exactly this arithmetic one level down, where the combined CR4 (35.0%) sits below both of its own halves (39.6% and 62.5%) [4]. Read 3241's concentration ratios as an artifact of aggregation, not a description of any real market.
• The level's plant count and workforce are really paving-and-roofing's. Three-quarters of the plants and, together with lubricants, nearly half the jobs sit outside refining.

Caveats.

• The receipts figure is price-inflated. 2022 was a record year for crude prices and refining margins, and refining is 93% of the total — so $883 billion overstates a "normal" year. This level's headline revenue rises and falls with the oil price even though the producers themselves earn a spread, not the oil price [2].
• Even the establishment count is a definitional artifact in refining. Census books 143 establishments; the Energy Information Administration (EIA) counts 130 operable refineries (128 operating, 2 idle) holding 18.160 million barrels per calendar day of capacity as of January 1, 2026 — Census includes non-production and administrative units, EIA counts physical plants [2].
• The undercount is real but sits in the two small children, not refining. Refining is captured well by federal statistics (the ~50 refining firms are close to the true count), though ownership is partly hidden — big assets belong to foreign/state owners (Saudi Aramco's Motiva) and private conglomerates (Koch/Flint Hills, whose Pine Bend refinery alone states 375,000 barrels per day of crude capacity) that a stock screener never shows [2]. The genuine volume undercount is elsewhere: on the paving side, vertically integrated contractors whose captive plants feed their own road crews are classified under construction, so the trade body (NAPA, the National Asphalt Pavement Association) reports roughly 400 million tons of pavement material worth in excess of $30 billion a year against the ~$18.2B the Census books as manufacturing [3]; on the lubricants and carbon side, full-synthetic lubes are booked as chemicals (NAICS 325998) and refinery-integrated base oil and petcoke are counted inside the refineries themselves (NAICS 324110), so market studies put total U.S. lubricants nearer $42 billion in 2024 against $19.6B booked here, and the U.S. produced roughly 46 million tons of petroleum coke a year over 2014–23 that mostly never touches a 32419 plant [4]. Read the $883B as a clean floor for refining and a material undercount for the two smaller children.

4. The investable universe — where value concentrates across the children

There is no single security that owns NAICS 3241, and value concentrates in completely different places in each child. Tickers appear here and in Section 10 only.

• Refining (the 93%) is where the listed value is. The cleanest public exposure to the whole level is simply the large independent refiners — Marathon Petroleum (NYSE: MPC), Valero (NYSE: VLO) and Phillips 66 (NYSE: PSX) — the biggest, most liquid pure plays, plus diversified exposure through integrated majors ExxonMobil (NYSE: XOM) and Chevron (NYSE: CVX). Smaller, higher-beta refiners include PBF Energy (NYSE: PBF), HF Sinclair (NYSE: DINO), Delek (NYSE: DK), CVR Energy (NYSE: CVI) and Par Pacific (NYSE: PARR). Ownership of the physical asset base is genuinely concentrated: Marathon (2.986 million barrels per calendar day), Valero (2.231M), ExxonMobil (1.967M) and Phillips 66 (1.220M) together held 46.3% of U.S. capacity at January 1, 2026 [2]. Note that the single largest U.S. refinery — Motiva's Port Arthur, Texas plant (~654,000–656,400 barrels per day) — is owned by Saudi Aramco and is not directly investable [2].
• Paving and roofing (the 4%) have no pure play at all. Paving value sits underneath the aggregates-led materials majors — CRH (NYSE: CRH, ~450 U.S. hot-mix plants and 52.9 million tons of Americas asphalt sales in 2025), Vulcan Materials (NYSE: VMC, 71 asphalt facilities, 13.4M tons), Martin Marietta (NYSE: MLM) — and the integrated road builders Knife River (NYSE: KNF, 55 plants), Construction Partners (NASDAQ: ROAD, 109 plants, FY2025 revenue $2.81B) and Granite Construction (NYSE: GVA, 8.45M asphalt tons and $696.7M of asphalt revenue in 2025); in every case asphalt is a lower-margin volume that pulls high-margin crushed stone through the system [3]. Roofing's cleanest listed exposure is Owens Corning (NYSE: OC), because the two biggest shingle makers (Owens Corning and privately held GAF) are ~60% of the North American market and only one is public; shingles are also inside Saint-Gobain (Euronext Paris: SGO; OTC: CODYY, via CertainTeed) and Amrize (NYSE: AMRZ, via Malarkey) [3].
• Lubricants and carbon (the 3%) have one pure play and a lot of private. SunCoke Energy (NYSE: SXC) is the only clean listed pure-play on any part of the "other" child (merchant metallurgical coke, ~3.7 million tons of U.S. capacity). Lubricants has no U.S. pure-play — the cleanest proxies are the additive maker NewMarket (NYSE: NEU), used-oil re-refiner Clean Harbors (NYSE: CLH) and foreign-listed Fuchs SE (XETRA: FPE3) — and most dedicated ownership (Oxbow at ~12% of global calcined petcoke, Drummond, and India-listed Rain at ~9%) is private or foreign [4].
• A trap worth naming. Valvoline (NYSE: VVV) is no longer a manufacturer in this level at all — it sold its Global Products business to Saudi Aramco for $2.65 billion in 2023 and is now a retail quick-lube services chain [4].
• The three bridge refiners — Phillips 66 (PSX), HF Sinclair (DINO) and Calumet (NASDAQ: CLMT) — are the only names touching more than one child, carrying refining plus lubricants plus wax/needle-coke specialty arms. HF Sinclair is the most lube-weighted, with a Lubricants & Specialties segment at $2.53 billion of revenue and $165 million of operating income in 2025 [2][4].
• The distribution layer, adjacent to all three, has become investable: QXO (NYSE: QXO, which acquired Beacon Roofing Supply for $10.6 billion in April 2025) and Home Depot (NYSE: HD, owner of distributor SRS, bought for ~$18 billion in 2024) now capture the channel that moves shingles to the job site [3].

Where value truly sits: in refining it is the pure-play independents and the cyclical crack spread; in paving it is aggregates hiding under the asphalt; in roofing it is the shingle margin held by a private-heavy oligopoly; in lubricants and carbon it is the specialty tail (additives, needle coke, pharma-grade wax). (Tickers and any margins belong to the specific securities, not to the industry; private names are reachable only through private-equity or private-credit vehicles.)

5. How the money works

All three children run on one template: profit = (product value − feedstock cost) × throughput − conversion cost, and the durable margin lives in the premium tail. The levers rhyme but the vocabulary differs.

• Refining — the crack spread. Refiners earn the gap between crude cost in and product value out, not a bet on oil rising. The core gauge is the 3-2-1 crack spread (the gross margin from turning 3 barrels of crude into 2 of gasoline and 1 of distillate), which is not the same as refinery profit — it omits secondary products, freight, energy, environmental credits, maintenance and depreciation. Because fixed costs are high, owners chase high utilization (throughput ÷ capacity), which averaged about 90.6% in 2024 and rose to 92.0% in 2025, with weekly summer peaks above 95%. In good years refiners throw off large free cash flow and return most of it via dividends and buybacks [2].
• Paving — pass-through and vertical integration. Asphalt binder is a refinery residual, so binder cost swings with crude; state transportation-department binder indices ran roughly $500–$575 per ton across 2024–2025, and public paving contracts often carry price-adjustment clauses that hand those swings back to the government owner. The real profit lever is owning the quarry (aggregates), the terminal, the mix plant and the paving crew, capturing margin at every step — the mix itself is thin, with Vulcan selling asphalt at an average $81.93 per ton in 2025 for $16.70 per ton of cash gross profit. Recycling is the other cost lever: producers reused 101.4 million tons of reclaimed asphalt pavement in 2024 at a reuse rate above 99%, substituting for virgin binder and stone [3].
• Roofing — pricing power and mix. The same binder feeds shingles, but a tight oligopoly protects the spread by raising price, and grows margin by shifting volume up the ladder from basic 3-tab to laminated ("architectural"), designer, impact-resistant and cool-roof products. The result is the fattest margin anywhere in the level: Owens Corning's Roofing segment earned roughly $1.41 billion of EBITDA on ~$4.44 billion of 2025 sales, a 32% margin [3].
• Lubricants — the blending spread. Profit is finished-lubricant price minus base oil, additives, packaging and freight; base oil is the bulk of cost, so the base-oil-to-finished-lube spread is the blender's crack spread. Mix is the lever — branded, synthetic, food-grade and OEM-approved (Original Equipment Manufacturer-specified) grades are premium and sticky. The spread is currently compressing: the Argus U.S. Group II N100 base-oil export price averaged $2.54 per gallon in 2025, down from $2.77 in 2024, amid oversupply and weak demand [4].
• Coke and carbon — conversion fee and throughput. Merchant coke passes coal cost through to steelmakers under take-or-pay contracts (the customer pays for contracted tons whether or not it lifts them), so the producer earns a fixed conversion fee and must run enormous fixed-cost ovens flat-out. Utilization is the whole game: SunCoke's Domestic Coke EBITDA per ton fell from $58.27 in 2024 to $46.35 in 2025 as production slipped from 4.032 to 3.749 million tons — a contracted business still exposed to volume and yield. Needle and calcined petcoke earn a spread plus a purity/quality premium [4].

The unifying investor read: spread and throughput, not volume growth — and in every child the resilient earnings sit in the premium/specialty tail, not the commodity core.

6. What drives demand

The three children answer to almost entirely separate demand engines, which is the level's best diversification feature and also its shared long-run vulnerability.

• Refining → transportation and industrial energy. Gasoline (the largest product, 8.906 million barrels per day in 2025, down from 8.967M b/d in 2024 and still below the pre-pandemic ~9.4M b/d), distillate (diesel and heating oil, 3.894M b/d — a freight and industrial barometer) and jet fuel (1.725M b/d, tracking air travel). The U.S. is a net exporter of refined products (~2.4M b/d in 2025, including 902,000 b/d of gasoline, 54% of it to Mexico), which lets refiners sell into global demand even as domestic gasoline plateaus [2].
• Paving → government budgets. Most asphalt mix goes onto publicly funded roads. The 2021 Infrastructure Investment and Jobs Act (IIJA) authorized $273.15 billion for the federal-aid highway program over FY2022–2026 (this corrects the ~$350 billion figure this page previously carried), underpinning several years of elevated paving demand on top of a non-discretionary repaving cycle; total U.S. transportation construction was estimated around $203.5 billion in 2025 [3].
• Roofing → home maintenance and weather. Roughly four-fifths of shingle volume is replacement (re-roofing), not new construction, so it holds up when housing starts fall — Saint-Gobain's 2023–2025 average attributes 50% of U.S. residential roofing demand to renovation, 28% to weather and major storms, and only 22% to new construction. Aging roofs (an estimated 38% of U.S. homes in moderate-to-poor condition as of 2025), hail and wind storms (over $15 billion in roof-related insurance claims across Texas, Oklahoma and Iowa in 2024–2025) and insurers tightening acceptable roof ages all convert into replacement contracts [3]. An honest tension to flag: our 32412 primer argues for durable low-single-digit replacement growth, but the shipment data it carries points the other way over the last two years — ARMA reports approximately 140 million U.S. shingle squares shipped in 2025, down from 161 million in 2024 and 169 million in 2023 [3]. The structural case and the recent volumes disagree; treat "steady replacement" as a thesis about the installed base, not a description of 2024–25 shipments.
• Lubricants and carbon → a shrinking commodity core. U.S. finished-lubricant demand fell ~46% from its late-1990s peak of about 2.6 billion gallons to under 1.4 billion gallons in 2024; U.S. coke made for steel fell to roughly 10 million short tons in 2025, down ~78% since 1980, as steelmaking shifted to electric-arc furnaces (EAF) that melt scrap rather than smelt ore with coke — EAF is now about 72% of U.S. steel production [4].

The shared long-run swing factor is electrification. The same megatrend touches every child differently: electric vehicles (EVs) erode gasoline (refining) and engine-oil gallons (lubricants) — the International Energy Agency estimates EVs displaced about 1.3 million barrels per day of oil in 2024, rising above 5 million by 2030 [4]; EAF steel erodes metallurgical coke; but diesel, jet fuel, road wear (EVs still drive on roads and do not reduce pavement demand), re-roofing, EV thermal-management fluids, needle coke and battery graphite are all stickier or even growing [3][4]. The level is best read as a large, mature demand base with a slow transition headwind and a handful of quiet growth pockets — not a growth story.

7. Regulation

None of the three children is price-regulated (this is not a utility or a rate base), but all are governed by environmental, safety and product-quality regimes, and the intensity varies sharply by child.

• Refining is the most heavily regulated. The Clean Air Act fuel standards run by the Environmental Protection Agency (EPA); the Renewable Fuel Standard (RFS) with its tradable RINs (Renewable Identification Numbers) — EPA's finalized total renewable-fuel requirement is 26.81 billion RINs for 2026 and 27.02 billion for 2027 — and Small Refinery Exemptions, on which EPA acted in August 2025 across 175 petitions, granting full or partial relief on 140; California's Low Carbon Fuel Standard (LCFS); process-safety and greenhouse-gas rules; and the Jones Act on domestic shipping. Permitting a new refinery is effectively prohibitive — no plant with significant downstream conversion capacity has been built since Marathon's Garyville refinery in 1977 — which is why the asset base only shrinks [2].
• Paving and roofing are permitting-and-budget constrained. Hot-mix plants are a recognized Clean Air Act source category operating under federal and state air permits; asphalt roofing and processing plants fall under EPA's NESHAP (National Emission Standards for Hazardous Air Pollutants), finalized in 2003 and reaffirmed after a 2020 risk-and-technology review, requiring maximum-achievable-control-technology limits. Paving demand is also shaped by public-procurement rules (Buy America) and the size of federal and state budgets; roofing is steered toward premium products by building-energy and hail-impact codes (California Title 24, Cool Roof Rating Council ratings, UL 2218 impact classes). Decarbonization is arriving as procurement policy too: FHWA has awarded $1.2 billion to 39 state transportation departments to develop and use lower-carbon materials [3].
• The carbon side carries the heaviest emissions burden. Coke-oven emissions are a classified known human carcinogen; EPA tightened the coke NESHAP in 2024 with fenceline benzene monitoring, and in 2025 withdrew an interim rule that would have extended certain compliance deadlines — a cost high enough to bar new conventional ovens. Lubricants are lighter-touch, governed mainly by used-oil rules under the Resource Conservation and Recovery Act (RCRA) and by API/OEM performance certifications (the current gasoline-engine-oil categories are API SQ with ILSAC GF-7, in force since March 2025) [4].
• Common thread: greenhouse-gas and decarbonization pressure weighs on the fossil-linked core of every child, while product-grade and purity standards protect the specialty tail on each side.

8. Consolidation

All three children are consolidating as their demand cores flatten or shrink — but from opposite structural starting points, which is the level's most interesting feature.

• Refining consolidates by running assets better and closing the weak. Already concentrated (CR4 52.2%, CR20 94.6%) after decades of mergers (Marathon–Andeavor, 2018), the game now is closing marginal capacity — LyondellBasell's ~264,000 b/cd Houston plant (March 2025), Phillips 66's ~139,000 b/cd Los Angeles refinery (October 2025) and Valero's ~145,000 b/d Benicia, California refinery (ceasing 2026) together remove more than 400,000 barrels per day [2].
• Paving is a classic roll-up. Fragmentation (paving CR4 22.2%) plus locally defensible haul-radius economics makes buying incumbent plants the growth path — Construction Partners added 27 plants through five acquisitions in 2025 for roughly $1.5 billion of aggregate transaction value, and Quikrete took Summit Materials private for ~$11.5 billion in February 2025 [3].
• Roofing is a consolidating oligopoly (already CR4 66.9%), where the moves are fewer but larger — Holcim's $1.35B purchase of Malarkey in 2022, later folded into the 2025 Amrize spin-off, which added a fifth serious residential player [3].
• Lubricants and carbon consolidate around the survivors — Saudi Aramco's $2.65B purchase of Valvoline's products business (2023), BP's pending sale of 65% of Castrol to Stonepeak at a ~$10.1 billion valuation (targeted for completion by end-2026), Clean Harbors rolling up re-refining to the largest North American position (243 million gallons collected in 2025), and merchant coke concentrating around SunCoke as weaker independents close [4].
• Distribution is consolidating fastest of all — QXO bought Beacon Roofing Supply for $10.6 billion (April 2025) and Home Depot bought SRS for ~$18 billion (2024), reshaping how product reaches the job site [3].

The through-line: whether the starting point is concentrated (refining, roofing) or fragmented (paving, lubricants), scale and capital increasingly win.

9. Risks

• Feedstock / oil volatility (all three). A fast run-up in crude or refining spreads compresses margins across every child — refiners on the crack spread, paving and roofing on binder cost, blenders and calciners on base-oil and green-coke cost. Because refining is 93% of the level's revenue, the level's headline results swing violently with crack spreads: Valero's refining operating income fell roughly three-quarters between 2022 and 2024 [1][2].
• The energy transition (all three, staggered). EVs and efficiency erode gasoline and engine oil; EAF steel erodes metallurgical coke — secular, not cyclical, and the defining long-run risk to terminal value. Substitution is uneven even within refining: road gasoline is most exposed, while aviation, heavy freight and petrochemical feedstocks have slower substitution paths [2][4].
• Policy and budget cliffs. For refining: RIN prices, small-refinery-exemption decisions and California rules. For paving: IIJA authorization expires September 30, 2026, and reauthorization is the single biggest swing factor for medium-term demand [2][3].
• Operational, labor and weather hazards. Refinery fires, storms and unplanned outages, compounded by a thin bench of experienced operators, technicians and turnaround contractors; storm-driven lumpiness in re-roofing; short or wet paving seasons throttling volume [2][3].
• Capital intensity and stranded assets. High break-even volumes bite hard in downturns for refiners; coke batteries and calciners are long-lived and hard to repurpose if demand shocks [2][4].
• Trade and end-of-life exposure. Roughly 90% of U.S. fuel-grade petcoke is exported, making it tariff- and freight-sensitive [4]; on the roofing side, EPA estimated approximately 15 million metric tons of asphalt shingles were discarded in the U.S. in 2018, of which about 13 million were landfilled — a disposal and reputational cost that recycling economics have not yet solved [3].
• Hidden and inaccessible ownership. Much of the level's value sits outside public markets — foreign/state refiners, private shingle and carbon houses, thousands of small paving contractors — so the listed "sector" a screener shows is only a slice [2][3][4].

10. How to invest, and the outlook

Public routes — pick your child, because there is no whole-level security.

• For the money (refining): the large independents Marathon Petroleum (MPC), Valero (VLO) and Phillips 66 (PSX) are the cleanest and most liquid; smaller/higher-beta names are PBF (PBF), HF Sinclair (DINO), Delek (DK), CVR (CVI) and Par Pacific (PARR); integrated majors ExxonMobil (XOM) and Chevron (CVX) offer diversified exposure. These are capital-return cyclicals — buy when margins and valuations are depressed, not steady compounders [2].
• For infrastructure exposure (paving/roofing): the aggregates-led majors CRH, Vulcan (VMC), Martin Marietta (MLM) and the more directly geared, more cyclical road builders Knife River (KNF), Construction Partners (ROAD) and Granite Construction (GVA) for paving; Owens Corning (OC) for the cleanest roofing margin, with Saint-Gobain (SGO) and Amrize (AMRZ) carrying shingles inside diversified parents; QXO and Home Depot (HD) for distribution [3].
• For the specialty tail (lubricants/carbon): the bridge refiners PSX / DINO / CLMT, additive maker NewMarket (NEU), recycler Clean Harbors (CLH), foreign pure-play Fuchs (FPE3), and coke pure-play SunCoke (SXC) — an income-oriented, contracted-cash-flow name (recent market cap ~$0.55B, dividend yield in the ~5–7% range), not a growth story. Valvoline (VVV) is not this industry — it is now retail services [4].

Private routes — where most of the level actually lives. Refineries are effectively closed to individuals (public companies, national oil companies, private conglomerates), with entry at institutional scale (e.g., the ~$5.9B 2025 Citgo auction) [2]. Paving's thousands of local plants and contractors, and roofing's private giants (GAF, with 30 U.S. locations under Standard Industries; IKO, Atlas, TAMKO, PABCO), are recurring private-equity and strategic-buyer targets [3]. The carbon side is largely private (Oxbow, Drummond, Duraflame, IGI) or foreign-listed (Rain), and private-equity interest on the lubricants side clusters in circular-economy re-refining and high-purity niches [4]. Investors can also take the funding side of paving through municipal-bond exposure to state and local transportation programs.

Outlook (forward-looking judgment). The level is a mature, consolidating, cash-generative industry group with a slow transition headwind — read child by child:

• Refining — the bull case is tightening supply (continued closures against still-large demand) supporting survivors' crack spreads, with exports, especially Gulf Coast diesel, as the release valve for flat domestic gasoline; the overhang is the transition clock on gasoline. Near-term cash flows stay strong even as terminal-value assumptions compress [2].
• Paving and roofing — the most weather- and policy-driven pair: paving enjoys a supportive 2025–26 backdrop from the final IIJA years, with reauthorization after September 30, 2026 the key uncertainty, while roofing rests on a large, aging housing stock and insurer-forced replacement — a durable structural story that nonetheless has to reconcile with two consecutive years of falling shingle shipments [3].
• Lubricants and carbon — a specialist's corner owned for cash flow and a few quiet growth pockets (synthetics, needle coke, battery graphite, specialty wax), not for broad volume; near-term, Group II base-oil oversupply pressures blending margins and SunCoke's 2025 volumes and yields show the coke side is not immune to operating risk even under take-or-pay contracts [4].

The common thread across all three: non-discretionary demand cores (fuel, roads, roofs, lubricants, steel inputs), a shared electrification headwind arriving at different speeds, and a consolidation dynamic that keeps favoring the well-capitalized, vertically integrated and specialty-tilted operators. These are judgments about direction, not guarantees.

For depth, see the child primers: 32411 Petroleum Refineries · 32412 Asphalt Paving, Roofing & Saturated Materials · 32419 Other Petroleum & Coal Products.

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Sources

Drawn from our federal ground-truth statistics for NAICS 3241 and the three child primers; child-primer citation numbering is consolidated here.

1. U.S. Census Bureau — Histometrics ingested federal ground-truth statistics for NAICS 3241: 2022 Economic Census / Concentration by Largest Firms (receipts $883.348B; 790 firms; CR4 49.5%, CR8 68.4%, CR20 89.5%, CR50 96.6%; HHI 763.8) and County Business Patterns 2023 (2,073 establishments; 100,856 employees; $12.914B annual payroll; $3.915B Q1 payroll). https://data.census.gov
2. Histometrics child primer — NAICS 32411, Petroleum Refineries (receipts $825.2B, 143 establishments, 55,064 employees, 50 firms, CR4 52.2%, CR8 72.2%, CR20 94.6%, CR50 100%, HHI 853.2; crack-spread economics; EIA 130 operable refineries and 18.160M b/cd at Jan 1, 2026; Gulf Coast 54.4% of capacity; top-four company capacity 46.3%; utilization 90.6% in 2024 and 92.0% in 2025; Valero refining operating income $15.803B in 2022 to $3.971B in 2024 and $4.040B in 2025; 2025 gasoline 8.906M b/d, distillate 3.894M b/d, jet 1.725M b/d, product exports ~2.4M b/d; MPC/VLO/PSX/XOM/CVX/PBF/DINO/DK/CVI/PARR; Motiva–Aramco Port Arthur; Koch/Flint Hills Pine Bend; Clean Air Act, RFS/RINs 26.81B for 2026, 140 of 175 small-refinery exemptions, LCFS, Jones Act; Garyville 1977; 2025–26 closures; ~$5.9B Citgo auction). Underlying: U.S. EIA Refinery Capacity Report, Today in Energy and product-supplied series; 2022 Economic Census and CBP 2023; U.S. EPA; Valero SEC filings; SBA size standards. /primers-preview/32411
3. Histometrics child primer — NAICS 32412, Asphalt Paving, Roofing and Saturated Materials Manufacturing (receipts $33.1B, 1,580 establishments, 28,942 employees, 525 firms, CR4 31.2%, CR8 43.8%, CR20 59.6%, CR50 74.8%, HHI 341.9; paving 324121 ~$18.2B / 1,397 plants / HHI 192 / CR4 22.2% versus roofing 324122 ~$15.0B / 183 plants / HHI 1,366 / CR4 66.9%; asphalt on ~94% of ~2.8M miles of paved road; CRH ~450 plants and 52.9M tons, Vulcan 71 facilities and 13.4M tons at $81.93/ton and $16.70/ton cash gross profit, Martin Marietta, Knife River 55 plants, Construction Partners 109 plants and $2.81B FY2025, Granite 8.45M tons and $696.7M asphalt revenue; Owens Corning Roofing ~$4.44B sales, ~$1.41B EBITDA, 32% margin; Saint-Gobain/CertainTeed, Amrize/Malarkey, GAF; NAPA ~400M tons and $30B+; RAP 101.4M tons reused in 2024; binder indices ~$500–575/ton; IIJA $273.15B FY2022–2026, expiring Sept 30, 2026; U.S. transportation construction ~$203.5B in 2025; roofing demand mix 50/28/22; ARMA 140M squares in 2025 versus 161M in 2024 and 169M in 2023; NESHAP; EPA 15M metric tons of shingles discarded in 2018; FHWA $1.2B low-carbon materials; QXO–Beacon $10.6B and Home Depot–SRS ~$18B; Quikrete–Summit ~$11.5B). Underlying: 2022 Economic Census / CBP 2023; National Asphalt Pavement Association; FHWA; U.S. DOT IIJA authorization table; U.S. EPA; BLS; company SEC filings. /primers-preview/32412
4. Histometrics child primer — NAICS 32419, Other Petroleum and Coal Products Manufacturing (receipts ~$25.0B, 350 establishments, 16,850 employees, 234 firms, CR4 35.0%, CR8 47.0%, CR20 65.8%, CR50 87.3%, HHI suppressed; lubricants 324191 ~$19.6B / 283 establishments / 13,925 employees / CR4 39.6% versus carbon 324199 ~$5.4B / 67 establishments / 2,925 employees / CR4 62.5%; aggregation dilutes concentration; PSX/DINO/CLMT bridge with HF Sinclair Lubricants & Specialties $2.53B revenue and $165M operating income in 2025; NewMarket, Clean Harbors 243M gallons in 2025, Fuchs, SunCoke ~3.7M tons capacity with $1.614B 2025 revenue, $170M adjusted EBITDA and EBITDA/ton falling $58.27 to $46.35, market cap ~$0.55B and ~5–7% yield; Oxbow ~12% and Rain ~9% of global calcined petcoke, Drummond, Duraflame, IGI; Valvoline no longer a manufacturer after the $2.65B Aramco sale; BP–Castrol/Stonepeak ~$10.1B; U.S. lubricant demand −46% to under 1.4B gallons in 2024 and total market ~$42B; petcoke ~46M tons/yr and ~90% of fuel-grade exported; coke for steel ~10M short tons in 2025, −78% since 1980; EAF ~72% of U.S. steel; U.S. raw steel 88M net tons in 2024; Argus Group II N100 $2.54/gal in 2025 versus $2.77 in 2024; boundary undercount to 324110/325998; API SQ / ILSAC GF-7; coke NESHAP 2024 and the 2025 withdrawal). Underlying: 2022 Economic Census / CBP 2023; U.S. EIA; IEA Global EV Outlook 2025; U.S. DOE; U.S. EPA; Lubes'N'Greases; SunCoke and HF Sinclair SEC filings. /primers-preview/32419